There has been recent news of Michael Bloomberg commisioning a poll to run and planning to join - http://www.cnn.com/2016/01/09/politics/michael-bloomberg-2016-president-campaign/
Could you add a market to wether he would run?
Let's get this one going
There is more news of this today...
I think this could be a good market.
Especially with today's NYT article I think this would be an interesting market.